Concealed hinge for automobile doors



`Fuly 15,1%41. c. DuMELlN CONCEALED HINGE FOR AUTOMOBILE DOORS Filed Feb. 25. l'1940 4 Flam.v

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Patented July 15, 1941 UNITED STATES PATENT OFFICE CONCEALED HINGE FOR AUTOMOBILE DOORS Charles Dumelin, Detroit, Mich. Application February 23, 1940, Serial No. 320,357

1 Claim. (Cl. 16-166) My invention relates to a concealed hinge adaptable for automobile doors, and the object is to provide a hinge with a simple construction for the purpose specified.

Another object is to provide a concealed hinge for the purpose to overcome the presence of glass runway constructions such as are used in modern automobile body building.

Still another object of my invention is to produce` a hinge with two plate members having overlapping end flanges with pivotal control means extending between each pair of said overlapping anges. Said pivotal control means comprising a ball element seated in a recess provided by a transverse groove. A second pivotal means comprising a link element together with pivot pins secured to the fianges of both members.

The invention consists in a hinge of the class and for the purpose specied, which is simple in construction and operation, efficient in use and which is constructed as hereinafter described and claimed.

The invention is fully disclosed in this speelcation, of which the accompanying drawing forms a part in which the separate elements are designated by suitable reference characters in each of the views and in which:

Fig. 1 is a plan view of the hinge in a closed position, the surrounding dotted lines illustrate part of sheet metal of a body and door.

Fig. 2 is a plan view of the hinge showing it in an open position.

Figs. 3 and 4 are elevations of the stationary member.

Figs. 5 and 6 are elevations of the pivotal member.

Figs. 7 and 8 are elevations of the link.

Figs. 9 and 10 are elevations of the pivot pins.

Figs. 11 and 12 are elevations of a spacer inserted between the links and end flanges of the pivotal member.

Fig. 13 is an end view of the hinge with the links and control bearings in their relative closed position.

In Fig. 1 of said drawing I denote I as part of sheet metal around a body and 2 as part of sheet metal .around the edge of a door, 3 and 4 illustrate sections of the glass runways disposed in their relative position as used in body and door constructions.

The hinge as shown comprises two plate members forming parallel overlapping end flanges with a pair of links and pivot pins secured there-V to, and pivotal control means comprising a ball element provided in a transverse groove extending between each pair of adjacent overlapping end anges.

The flanges of member 5 are provided with a .ball receiving recess I I and pivot pins 9.

The flanges of member 6 are provided with grooves B extending about an edge of the anges and pivot pins I0 are mounted to these flanges.

'I'he flanges of both members have locating holes I2 and I3 disposed in given positions and corresponding with the distance of the end bearings I4 oi the links.

The hinge consisting of two plate members 5 and 6, a pair of links l and 8, pivot pins 9 and I Il including spacers I6, control bearings A and transverse groove B.

'I'he parts are assembled as indicated in Figs. 1, 2, and 13.

The end flanges of member 5 are spread out over the ball element A held in grooves B, the links 'I and 8 together with pivot pins 9 and III and spacers I6 are secured to the locating holes I2 and I3 respectively.

Further the structure of the hinge is such as to provide the two members with rigidness while supporting the door.

From the above it can be seen I have provided van exceptionally eiiicient, strong, reasonably inexpensive hinge for the purpose intended.

What I claim and desire to secure by Letters Patent is:

A door hinge of the concealed type comprising two members provided with'upper and lower end anges, the flanges of one member being parallel and overlapping the flanges of the other member, pivotal control means extending between each pair of adjacent overlapping flanges, said control means comprising a ball element seated in a recess in a flange and movable in a groove in an adjacent flange, and with the members in closed position said groove extending outwardly and forwardly of the door jamb, and pivotal means comprising link elements and two sets of pivot pins secured to the outer sides of the upper and lower anges, one set of pivot pins securing the links with the end flanges of the stationary member and the other set of pivot pins including spacers securing the links with the end flanges of the swinging member beyond the anges of the stationary member.

CHARLES DUMEIJN. 

